The How to Get What You Want blog explores using sensors on skin.
I bought this medical foil at the local Apotheke (drug/medicine store) in Germany. I have also asked the Tattoo shops near-by. They were happened to be out of stock, but it is used for skin protection after getting tattoos and often they sell them.
The foil comes with two backing layers. Paper backing on sticky side, and transparent foil on top side. Remove the transparent (top) side first with pinsett (this is a bit tricky part) and place the content of the sensor.
Resistance changes when the sensor is bent by moving.
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